LS2 TBSS intake on 5.3
#11
Originally Posted by L33Z71
Makes me wonder what the difference is between the LS2 Intakes and the new Gen IV truck 4.8/5.3/6.0's. I haven't confirmed what size the stock TB is on my 07 4.8 yet and would be nowhere close to needing the conversion at this point, but might be useful knowledge for future reference.
#12
Originally Posted by thunder550
You won't have any problems with clearance running the LS2 truck manifold. A couple things to watch out for though....you need a 4 bolt 90mm throttle body and you'll have to fab up your own throttle cable bracket since all of the LS2 trucks are ETC. You will also need to custom-make some fuel rails. I cut the tabs off my stock truck rails and made my own brackets from some thin strips of aluminum. The crossover tube will only clear if you use the taller LS1 style injectors. The MAP sensor wires will also have to be lengthened.
#14
I think there's gonna be some good gains to be had from the 90mm opening in itself... plus I'm sure it flows better than the stock GEN III truck intake... better torque down low and better breathing up top as well.... its a win/win
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Jul 19, 2015 07:08 PM




